题目内容:
BAiscurrentlyinaworryingsituationduetothefollowingdifficultiesEXCEPT
A.possibleincreasesintaxation. B.competitioncomingfromlow-costairlines.
C.sustainabilityofitsconventionalroutes.
D.highcostforlandingatprimeairports.
参考答案:
答案解析: